Zhang, Na; Wang, Taisheng; Wu, Xing; Jiang, Chen; Chen, Fang; Bai, Wei; Bai, Ruke published the artcile< Self-exfoliation of 2D covalent organic frameworks: morphology transformation induced by solvent polarity>, Reference of 112-63-0, the main research area is layered borate ester containing covalent organic nanosheet preparation; covalent organic framework borate ester preparation morphol transformation.
Recently, covalent organic nanosheets (CONs) have emerged as functional two-dimensional (2D) materials for versatile applications. Strong interaction among layers and the instability of borate ester in moisture are the major hurdles to obtain few layered B-containing CONs by exfoliation of their bulk counterparts. The authors report a facile approach for preparation of few layered borate ester-containing CONs based on electrostatic repulsion of ions. The authors incorporated organic ionic groups into porous covalent organic frameworks (COFs) and the COFs with quaternary ammonium group could self-exfoliate into few layered ionic covalent organic nanosheets (iCONs) in polar organic solvents. The morphol. of the iCOFs-A could be changed from a multilayered aggregation to nanocapsules, or 2-dimensional sheets when solvents with different polarity were used. In contrast, nonionic covalent organic frameworks COFs-B could not self-exfoliate in various solvents. The self-exfoliated nanosheets could be used to fabricate uniform thin films on SiO2 wafer and the film exhibited explicit optical and elec. properties.
RSC Advances published new progress about Composites (layered borate ester-containing nanosheets). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics